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        <h1 id="1-slf4j-与日志关系"><a href="#1-slf4j-与日志关系" class="headerlink" title="1 slf4j 与日志关系"></a>1 slf4j 与日志关系</h1><p>在我们日常开发中，离不开对日志的记录。目前java日志大多采用slf4j日志框架。有slf4j提供日志框架，各种日志实现产品(log4j, logback)slf4j</p>
<ol>
<li><p>如何获取Logger对象</p>
</li>
<li><p>日志实现框架如何对接slf4j框架</p>
</li>
<li><p>StaticLoggerBinder slf4j与实现框架的桥梁</p>
</li>
<li><p>slf4j如何做到在打jar包时，没有 StaticLoggerBinder 编译通过</p>
<figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">&lt;configuration&gt;</span><br><span class="line">  &lt;tasks&gt;</span><br><span class="line">    &lt;echo&gt;Removing slf4j-api&apos;s dummy StaticLoggerBinder and StaticMarkerBinder&lt;/echo&gt;</span><br><span class="line">    &lt;delete dir=&quot;target/classes/org/slf4j/impl&quot;/&gt;</span><br><span class="line">  &lt;/tasks&gt;</span><br><span class="line">&lt;/configuration&gt;</span><br></pre></td></tr></table></figure>
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<h1 id="2如何getLogger"><a href="#2如何getLogger" class="headerlink" title="2如何getLogger"></a>2如何getLogger</h1><p>LoggerFactory.getLogger委托给ILoggerFactory.getLogger<br>logback中通过LoggerContext实现ILoggerFactory。而getLogger则委托给ILoggerFactory完成。</p>
<p>getLogger两种方式，一种默认的LoggerContext<br>LoggerContext 实现ILoggerFactory</p>
<p>另一种通过ContextSelector选择相应的Selector，获取LoggerContext<br>ContextSelector 接口，包含获取LoggerContext的方法</p>
<h1 id="3-创建Logger"><a href="#3-创建Logger" class="headerlink" title="3 创建Logger"></a>3 创建Logger</h1><p>Logger是一棵树？<br>Logger如何维持父子关系？</p>
<p>每一个Logger的创建都是通过其父Logger调用createChildByName 来创建的。父类关系通过class的全名称【.】来划分</p>
<p>真是创建Logger的方法为： Logger childLogger = new Logger(childName, this, this.loggerContext);</p>
<p>所以createChildByName方法中即创建的Logger对象，又维持了父子关系（父对象指针：partner，子集合：childrenList）</p>

      
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